The carrier plans to launch quite a number of devices in the following months

US-based carrier T-Mobile is expected to launch the Samsung Galaxy Note II in the next few weeks, but this is not the only worthy device the operator will add to its portfolio.

The folks over at TmoNews got their hands on T-Mobile's roadmap for the next few months. Aside from the names of the upcoming devices, the leaked document also includes release dates for each of these products.

Unfortunately, we don't know how accurate the information coming from this document is, which is why we'll be taking it lightly until more details emerge.

However, we do know T-Mobile USA plans to release the HTC Windows Phone 8X handset on November 15.

In addition, the carrier is expected to launch the LG Optimus L9 about two weeks earlier, on October 31.

Just like AT&T, which is now selling the garnet red Galaxy S III, T-Mobile will launch additional color options for Samsung's popular Android smartphone.

The leaked document mentions something about a Samsung Galaxy S II Color Refresh, though we think this is a typo and the magenta operator will offer new color options for Galaxy S III.

The folks over at SlashGear also claim that the Samsung Galaxy S II Color is an entirely new device, which has yet to be announced. No details on the phone's specs are available for the moment.

Furthermore, T-Mobile USA will be bringing the BlackBerry Armstrong, which is in fact a rebranded Blackberry Bold Touch 9900.

Another smartphone built by RIM is expected to hit shelves at T-Mobile USA, the BlackBerry Curve 9315. This one comes with OS 7.1, 2.44-inch display, 3.2-megapixel camera and 1450 mAh Li-Ion battery.

Last but not least, an unknown Huawei Summit appears in T-Mobile's roadmap as well, though we don't have anything else on this one.

Samsung Toba, which we don't know yet whether it's a smartphone, tablet or other Wi-Fi device, will be released on November 7. Stay tuned for more updates on the matter.